Form 8.5 EPT/Non RI BIG YELLOW GROUP PLC

FORM 8.5 (EPT/NON-RI)

PUBLIC OPENING POSITION DISCLOSURE/DEALING DISCLOSURE BY AN

EXEMPT PRINCIPAL TRADER WITHOUT RECOGNISED INTERMEDIARY ("RI") STATUS

(OR WHERE RI STATUS IS NOT APPLICABLE)

Rule 8.5 of the Takeover Code (the "Code")

1.

KEY INFORMATION

(a)

Name of exempt principal trader:

BARCLAYS CAPITAL SECURITIES LTD

(b)

Name of offeror/offeree in relation to whose

BIG YELLOW GROUP PLC

relevant securities this form relates:

(c)

Name of the party to the offer with which exempt

BIG YELLOW GROUP PLC

principal trader is connected

(d)

Date position held/dealing undertaken:

23 Oct 2025

(e)

In addition to the company in 1(b) above, is the exempt principal

NO

trader making disclosures in respect of any other party to the offer?

2.

POSITIONS OF THE EXEMPT PRINCIPAL TRADER

(a)

Interests and short positions in the relevant securities of the offeror or offeree

to which the disclosure relates following the dealing (if any)

Class of relevant security:

10p ordinary

Interests

Short Positions

Number

(%)

Number

(%)

(1)

Relevant securities owned

and/or controlled:

423,116

0.22%

244,412

0.12%

(2)

Cash-settled derivatives:

and/or controlled:

149,810

0.08%

339,323

0.17%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

572,926

0.29%

583,735

0.30%

(b)

Rights to subscribe for new securities (including directors and other executive

options)

Class of relevant security in relation to

which subscription right exists

Details, including nature of the rights

concerned and relevant percentages:

3.

DEALINGS (IF ANY) BY THE EXEMPT PRINCIPAL TRADER

(a)

Purchases and sales

Class of relevant

Purchase/sale

Total number of

Highest price per unit

Lowest price per unit

security

securities

paid/received

paid/received

10p ordinary

Purchase

224,330

11.7271 GBP

11.5800 GBP

10p ordinary

Sale

162,870

11.7200 GBP

11.5834 GBP

(b)

Cash-settled derivative transactions

Class of

Product

Nature of dealing

Number of

Price per

relevant

description

reference

unit

security

securities

10p ordinary

SWAP

Decreasing Short

696

11.5895 GBP

10p ordinary

SWAP

Decreasing Short

386

11.6276 GBP

10p ordinary

SWAP

Decreasing Short

3,554

11.6388 GBP

10p ordinary

SWAP

Decreasing Short

1,047

11.6529 GBP

10p ordinary

SWAP

Decreasing Short

160

11.6601 GBP

10p ordinary

SWAP

Decreasing Short

404

11.6637 GBP

10p ordinary

SWAP

Decreasing Short

156

11.6725 GBP

10p ordinary

SWAP

Decreasing Short

638

11.6842 GBP

10p ordinary

SWAP

Decreasing Short

33

11.6990 GBP

10p ordinary

SWAP

Decreasing Short

2,475

11.7117 GBP

10p ordinary

SWAP

Decreasing Short

74,998

11.7200 GBP

10p ordinary

SWAP

Increasing Short

3,655

11.6267 GBP

10p ordinary

SWAP

Increasing Short

3,200

11.6440 GBP

10p ordinary

SWAP

Increasing Short

5,587

11.6594 GBP

10p ordinary

SWAP

Increasing Short

66

11.6600 GBP

10p ordinary

SWAP

Increasing Short

267

11.6677 GBP

10p ordinary

SWAP

Increasing Short

95,869

11.6800 GBP

10p ordinary

SWAP

Increasing Short

12,785

11.6894 GBP

10p ordinary

SWAP

Increasing Short

1,077

11.6965 GBP

10p ordinary

SWAP

Increasing Short

707

11.7000 GBP

10p ordinary

SWAP

Increasing Short

18,109

11.7040 GBP

10p ordinary

SWAP

Increasing Short

2,000

11.7196 GBP

10p ordinary

SWAP

Increasing Short

25,932

11.7200 GBP

10p ordinary

CFD

Increasing Long

2,910

11.6772 GBP

10p ordinary

CFD

Increasing Long

968

11.6924 GBP

10p ordinary

CFD

Increasing Long

45,062

11.7200 GBP

10p ordinary

CFD

Decreasing Long

247

11.5987 GBP

10p ordinary

CFD

Decreasing Long

1,482

11.6503 GBP

10p ordinary

CFD

Decreasing Long

21,134

11.7200 GBP

10p ordinary

CFD

Decreasing Long

2,691

11.7272 GBP

(c)

Stock-settled derivative transactions (including options)

(i)

Writing, selling, purchasing or varying

Class

Product

Writing,

Number

Exercise

Type

Expiry

Option

of

description

purchasing,

of

price

date

money

relevant

selling,

securities

per unit

paid/

security

varying etc

to which

received

option

per unit

relates

(ii)

Exercising

Class of relevant

Product description

Exercising/ exercised against

Number of

Exercise price per

security

securities

unit

(d)

Other dealings (including subscribing for new securities)

Class of relevant

Nature of Dealings

Details

Price per unit (if

security

applicable)

4.

OTHER INFORMATION

(a)

Indemnity and other dealings arrangements

Details of any indemnity or option arrangement, or any agreement or understanding,

formal or informal, relating to relevant securities which may be an inducement to deal

or refrain from dealing entered into by the exempt principal trader making the disclosure and any party

to the offer or any person acting in concert with a party to the offer:

NONE

(b)

Agreements, arrangements or understandings relating to options or derivatives

Details of any agreement, arrangement or understanding, formal or informal, between

the exempt principal trader making the disclosure and any other person relating to:

(i) the voting rights of any relevant securities under any option; or

(ii) the voting rights of future acquisition or disposal of any relevant securities to which

any derivative is referenced:

NONE

(c)

Attachments

Is a Supplemental Form 8 (Open Positions) attached?

NO

Date of disclosure:

24 Oct 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213